I was going through my grow area today and found a great book I had bought 4-5 years ago, it's called Marijuana Garden Saver. It's edited by Ed Rosenthal, so you know it's good. Anyways it has just about every bug def, disease or stress problem you'll have and organic and chemical solutions how to avoid in the first place. It touches on soil and a little hydro, tells you how to control it all from the beginning. It's a great read for beginners and a good refresher for more experienced growers. I really can't say enough about it, alot of cannabis growing books aren't really good or are geared at high production, this is all the little details to make you succesful enough to move on to something like big production. I really have to agree with the others it really looks like a classic calcium def to me. the purple along with the rust looking spots, and yellowing. If this keeps going on the roots will never develop correctly and will start to rot and your plant will become brittle and not bend but snap. Some cal/mag will help and you can top dress with some gypsum if you want. A tiny bit of hydrated lime will help her in a hurry, but too much will burn her up. There are liquid lime and other such things you can use, depends on how desperate your girls are getting and how fast you want the solution to kick in. Good luck with your girls bro.
out.
